I took my dads ltz250 out a couple weeks ago and didnt bother to check the tires. After I got out on the trail I realized they were over inflated. I rode about 70 miles and when I got home I checked the psi. My little bro had taken it out and thought they were flat at 5 psi so he ran them up to max psi. Have you ever tried to ride 70 miles wide open with 36psi in the tires!?! It beat me half to death, I was sore for three days. I'd never ridden this quad before I thought it just had a really horrible ride.:-[